TRANSFORMER FOR A LAMP, LED CONVERTER, AND TRANSFORMER OPERATION METHOD

摘要

A galvanically isolated transformer (59) for energizing a lamp (5) comprises a primary circuit (60) including a half-bridge circuit that has two reciprocally clocked switches (21, 22), and including an LLC resonant circuit (25-27). The transformer (59) further comprises a secondary circuit (30) including an output (35) for supplying energy to the lamp (5). A control device (14) is designed to control the half-bridge circuit in accordance with a control variable (ipeak) detected in the primary circuit (60) in order to adjust a current intensity supplied to the lamp (5) by the secondary circuit (30) to a desired value.